I have a SharePoint List of below items.

In the PowerApps form I have a Gallery control with a display form. I have added one button control in that screen. In the Display form I have displaying the Gallery selected item. In my button control I wrote the below rule so that particular Item Id will save to a Different SharePoint List named as "AboutCountry" title column(Default column).

Below one is "AboutCountry" list where we can see the ID value in the Title(Capital) column.

I have added two more column in the "AboutCountry" field as "LargestCity" and "OfficialLanguage".

Now My requirment is I want to display this 2 list(Country and About Country) data in a Different Gallery control. I want when user will click on the next icon of Gallery control, then respective item details should come in the Details form. I donot know how I can manage two list item in a Gallery control. Please Share with me if any body have solution.
In the Gallery control single list data we can show easily but two list data how to do?? I want based on the ID It should filter. For Example In the Gallery we will show the Country Name. When user will click on the Country name on the Gallery control next icon he should able two see all details like "Population", "PerCapitaIncom", "LargeCity" and "officialLanguage" of respective item. Suppose user click on "India" he can able to see all details in the Details Form like population in india, PerCapita income in India, Large City in India and Official language in India..I donot know it is possible or not??
Regards,
Padmini